E W ENTRANCE E W ATRIUM E W N S LOBBY N S PARKING N S RETAIL BLOCK SECTION - NORTH/SOUTH 0' 16' 32' 64' Seal/Signature OFFICE. Date.

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1 LOBBY LAFAYETTE HALL I ST I STREET FITNESS PARKING AVENUE AVENUE INTERNATIONAL 90' RIGHT-OF-WAY E W ENTRANCE E W ATRIUM E W 130'-0" RIGHT-OF-WAY FINANCE CORPORATION BLOCK SECTION - NORTH/SOUTH A-500 N S LOBBY N S PARKING N S SCALE: 1/64 = 1-0 BLOCK SECTION - NORTH/SOUTH

2 I STREET AVE CENTRAL PLANT PARKING I STREET 90'-0" RIGHT-OF-WAY MATCH LINE DISTRICT HOUSE MATCH LINE E W ENTRANCE AVENUE INTERNATIONAL 130'-0" RIGHT-OF-WAY FINANCE CORPORATION E W ATRIUM EW 0' 8' 16' 32' 0' 16' 32' 0' 16' 32' BLOCK SECTION - NORTH/SOUTH N S LOBBY N S PARKING N S SCALE: 64' 1/64 = 1-0 BLOCK SECTION NORTH/SOUTH 64' A- 501 C O PY R I G HT 2 O 1 7

3 / LOBBY 21ST STREET CENTRAL PLANT BURNS BUILDING 2112 AVENUE PARKING 21ST STREET 90' - 0" RIGHT-OF-WAY MONROE PARK BLOCK SECTION - EAST/WEST A-502 E W ENTRANCE E W ATRIUM E W SCALE: 1/64 = 1-0 BLOCK SECTION - EAST/WEST

4 ALLEY 21ST STREET / / THE AVENUE 22ND STREET 90'-0" RIGHT-OF-WAY AMBULATORY CARE CENTER THE PRESIDENT CONDOMINIUM LOT ' - 0" ALLEY PARKING 21ST STREET 90' - 0" RIGHT-OF-WAY MONROE PARK BLOCK SECTION - EAST/WEST BLOCK SECTION - EAST/WEST E W ENTRANCE E W ATRIUM E W SCALE: 1/64 = 1-0 A- 503

5 BUILDING SECTION - NORTH/SOUTH A-504 I STREET ESCALATOR TBD ELEVATOR TBD / E W ENTRANCE E W ATRIUM E W SCALE: 1/32 = 1-0 N S LOBBY N S PARKING N S NOTES: LOBBY 130' - 0" PH ROOF T.O. PARAPET ' PH LEVEL T.O. PARAPET ' MEASURING POINT 73.93' -APPLICANT REQUESTS FLEXIBILITY TO VARY THE LOCATION AND DESIGN OF ALL INTERIOR COMPONENTS, INCLUDING PARTITIONS, STRUCTURAL SLABS, DOORS, HALLWAYS, COLUMNS, STAIRWAYS, AND ANICAL ROOMS, PROVIDED THAT THE VARIATIONS DO NOT CHANGE THE EXTERIOR CONFIGURATION OF THE BUILDING. FLOOR LEVEL ELEVATIONS ARE SUBJECT TO CHANGE DURING FINAL ENGINEERING. OVERALL BUILDING HEIGHTS REPRESENTED SHALL NOT BE EXCEEDED. -SPACES DENOTED AS MAY INCLUDE THE FOLLOWING USES: -ARTS, DESIGN AND CREATION -DAYTIME CARE -EATING AND DRINKING ESTABLISHMENT -ENTERTAINMENT ASSEMBLY, PERFORMING ARTS - -SERVICE, GENERAL OR FINANCIAL (EXCEPT ON I STREET, WHERE FINANCIAL SERVICE USES WILL BE PROHIBITED) LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' CELLAR 53.83' LEVEL P ' LEVEL P ' LEVEL P ' AVENUE BUILDING SECTION - NORTH/SOUTH

6 I STREET NOTES: BUILDING SECTION - NORTH/SOUTH / PENTHOUSE MULTI-FUNCTION ROOM BEYOND I ST ENTRANCE ATRIUM BEYOND / MATCH LINE MATCH LINE PENTHOUSE -APPLICANT REQUESTS FLEXIBILITY TO VARY THE LOCATION AND DESIGN OF ALL INTERIOR COMPONENTS, INCLUDING PARTITIONS, STRUCTURAL SLABS, DOORS, HALLWAYS, COLUMNS, STAIRWAYS, AND ANICAL ROOMS, PROVIDED THAT THE VARIATIONS DO NOT CHANGE THE EXTERIOR CONFIGURATION OF THE BUILDING. FLOOR LEVEL ELEVATIONS ARE SUBJECT TO CHANGE DURING FINAL ENGINEERING. OVERALL BUILDING HEIGHTS REPRESENTED SHALL NOT BE EXCEEDED. 130' - 0" PH ROOF T.O. PARAPET ' T.O. SKYLIGHT ' PH LEVEL T.O. PARAPET ' MEASURING POINT 73.93' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' CELLAR 53.83' LEVEL P ' LEVEL P ' LEVEL P ' E W ENTRANCE AVE E W ATRIUM 505 -SPACES DENOTED AS MAY INCLUDE THE FOLLOWING USES: -ARTS, DESIGN AND CREATION -DAYTIME CARE -EATING AND DRINKING ESTABLISHMENT -ENTERTAINMENT ASSEMBLY, PERFORMING ARTS - -SERVICE, GENERAL OR FINANCIAL (EXCEPT ON I STREET, WHERE FINANCIAL SERVICE USES WILL BE A- PROHIBITED) SCALE: 1/32 = 1-0 N S LOBBY N S PARKING N BUILDING SECTION - NORTH/SOUTH

7 G BUILDING SECTION- NORTH/SOUTH A-506 E W I STREET SCALE: 1/32 = 1-0 N S ANICAL PENTHOUSE NOTES: MATCH LINE MATCH LINE WEST WALL BEYOND ATRIUM MULTI-FUNCTION SPACE LOADING DOCK PENTHOUSE OFFIC E ANICAL -APPLICANT REQUESTS FLEXIBILITY TO VARY THE LOCATION AND DESIGN OF ALL INTERIOR COMPONENTS, INCLUDING PARTITIONS, STRUCTURAL SLABS, DOORS, HALLWAYS, COLUMNS, STAIRWAYS, AND ANICAL ROOMS, PROVIDED THAT THE VARIATIONS DO NOT CHANGE THE EXTERIOR CONFIGURATION OF THE BUILDING. FLOOR LEVEL ELEVATIONS ARE SUBJECT TO CHANGE DURING FINAL ENGINEERING. OVERALL BUILDING HEIGHTS REPRESENTED SHALL NOT BE EXCEEDED. -SPACES DENOTED AS MAY INCLUDE THE FOLLOWING USES: -ARTS, DESIGN AND CREATION -DAYTIME CARE -EATING AND DRINKING ESTABLISHMENT -ENTERTAINMENT ASSEMBLY, PERFORMING ARTS - -SERVICE, GENERAL OR FINANCIAL (EXCEPT ON I STREET, WHERE FINANCIAL SERVICE USES WILL BE PROHIBITED) 130' - 0" PH ROOF T.O. PARAPET ' T.O. SKYLIGHT ' PH LEVEL T.O. PARAPET ' MEASURING POINT 73.93' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' CELLAR 53.83' LEVEL P ' LEVEL P ' LEVEL P ' AVE BUILDING SECTION - NORTH/SOUTH

8 2112 PENN AVE BLDG LOT LINE 9TH FLOOR EASEMENT 21ST STREET LEVEL ' NOTES: LOBBY / / ANICAL -APPLICANT REQUESTS FLEXIBILITY TO VARY THE LOCATION AND DESIGN OF ALL INTERIOR COMPONENTS, INCLUDING PARTITIONS, STRUCTURAL SLABS, DOORS, HALLWAYS, COLUMNS, STAIRWAYS, AND ANICAL ROOMS, PROVIDED THAT THE VARIATIONS DO NOT CHANGE THE EXTERIOR CONFIGURATION OF THE BUILDING. FLOOR LEVEL ELEVATIONS ARE SUBJECT TO CHANGE DURING FINAL ENGINEERING. OVERALL BUILDING HEIGHTS REPRESENTED SHALL NOT BE EXCEEDED. 130' - 0" PH ROOF T.O. PARAPET ' PH LEVEL T.O. PARAPET ' 2112 PENN AVENUE MEASURING POINT 73.93' -SPACES DENOTED AS MAY INCLUDE THE FOLLOWING USES: -ARTS, DESIGN AND CREATION -DAYTIME CARE -EATING AND DRINKING ESTABLISHMENT -ENTERTAINMENT ASSEMBLY, PERFORMING ARTS - A SERVICE, GENERAL OR FINANCIAL (EXCEPT ON I STREET, WHERE FINANCIAL SERVICE USES WILL BE PROHIBITED) BUILDING SECTION - EAST/WEST SCALE: 1/32 = 1-0 LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' CELLAR 53.83' LEVEL P ' LEVEL P ' LEVEL P ' E W ENTRANCE BUILDING SECTION - EAST/WEST E W

9 BUILDING SECTION- EAST/WEST A ST STREET LOBBY NOTES: ATRIUM ANICAL / LOADING -APPLICANT REQUESTS FLEXIBILITY TO VARY THE LOCATION AND DESIGN OF ALL INTERIOR COMPONENTS, INCLUDING PARTITIONS, STRUCTURAL SLABS, DOORS, HALLWAYS, COLUMNS, STAIRWAYS, AND ANICAL ROOMS, PROVIDED THAT THE VARIATIONS DO NOT CHANGE THE EXTERIOR CONFIGURATION OF THE BUILDING. FLOOR LEVEL ELEVATIONS ARE SUBJECT TO CHANGE DURING FINAL ENGINEERING. OVERALL BUILDING HEIGHTS REPRESENTED SHALL NOT BE EXCEEDED. -SPACES DENOTED AS MAY INCLUDE THE FOLLOWING USES: -ARTS, DESIGN AND CREATION -DAYTIME CARE -EATING AND DRINKING ESTABLISHMENT -ENTERTAINMENT ASSEMBLY, PERFORMING ARTS - -SERVICE, GENERAL OR FINANCIAL (EXCEPT ON I STREET, WHERE FINANCIAL SERVICE USES WILL BE PROHIBITED) ALLEY PH ROOF T.O. PARAPET ' T.O. SKYLIGHT ' PH LEVEL T.O. PARAPET ' SCALE: 1/32 = 1-0 BUILDING SECTION - EAST/WEST NCE E W ATRIUM E W LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LOADING 65.83' CELLAR 53.83' LEVEL P ' LEVEL P ' LEVEL P '

10 I STREET EAST ENTRANCE LOBBY LEVEL ' PUBLIC ALLEY EL 64.75' ANICAL / / NOTES: PARKING ENTRANCE -APPLICANT REQUESTS FLEXIBILITY TO VARY THE LOCATION AND DESIGN OF ALL INTERIOR COMPONENTS, INCLUDING PARTITIONS, STRUCTURAL SLABS, DOORS, HALLWAYS, COLUMNS, STAIRWAYS, AND ANICAL ROOMS, PROVIDED THAT THE VARIATIONS DO NOT CHANGE THE EXTERIOR CONFIGURATION OF THE BUILDING. FLOOR LEVEL ELEVATIONS ARE SUBJECT TO CHANGE DURING FINAL ENGINEERING. OVERALL BUILDING HEIGHTS REPRESENTED SHALL NOT BE EXCEEDED. 130' - 0" PH ROOF T.O. PARAPET ' PH LEVEL T.O. PARAPET ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' LEVEL ' 21ST STREET MEASURING POINT LEVEL ' 74.12' LEVEL ' -SPACES DENOTED AS MAY INCLUDE THE FOLLOWING USES: -ARTS, DESIGN AND CREATION -DAYTIME CARE -EATING AND DRINKING ESTABLISHMENT -ENTERTAINMENT ASSEMBLY, PERFORMING ARTS - -SERVICE, GENERAL OR FINANCIAL (EXCEPT ON I STREET, WHERE FINANCIAL SERVICE USES WILL BE PROHIBITED) A- 509 CELLAR 53.83' LEVEL P ' LEVEL P ' LEVEL P ' E W ENTRANCE E W ATRIUM E W BUILDING SECTION - EAST/WEST SCALE: 1/32 = 1-0 BUILDING SECTION- EAST/WEST

11 PRELIMINARY LEED SCORE CARD LEED v4 for BD+C: Core and Shell Project Scorecard Project Information Form Possible Points n/a Energy and Atmosphere Possible Points 33 Y?Y?N N Y?Y?N N Y PIf1 Project Information Form 1 Y EAp1 Fundamental Commissioning and Verification Y EAp2 Minimum Energy Performance 1 Integrative Process Possible Points 1 Y EAp3 Building-Level Energy Metering Y?Y?N N Y EAp4 Fundamental Refrigerant Management 1 IPc1 Integrative Process EAc1 Enhanced Commissioning EAc2 Optimize Energy Performance Location and Transportation Possible Points (w/o RP) 20 1 EAc3 Advanced Energy Metering 1 Y?Y?N N 2 EAc4 Demand Response 2 LTc1 LEED for Neighborhood Development Location 20 3 EAc5 Renewable Energy Production 3 2 LTc2 Sensitive Land Protection 2 1 EAc6 Enhanced Refrigerant Management 1 3 LTc3 High Priority Site [RP] 3 2 EAc7 Green Power and Carbon Offsets LTc4 Surrounding Density and Diverse Uses [RP] 6 7 LTc5 Access to Quality Transit [RP] Materials and Resources Possible Points 14 1 LTc6 Bicycle Facilities 1 Y?Y?N N 1 LTc7 Reduced Parking Footprint 1 Y MRp1 Storage & Collection of Recyclables 2 LTc8 Green Vehicles [RP] 1 Y MRp2 Construction and Demolition Waste Management Planning 3 3 MRc1 Building Life-Cycle Impact Reduction Sustainable Sites Possible Points (w/o RP) MRc2 BPDO: Environmental Product Declarations 2 Y?Y?N N 2 MRc3 BPDO: Sourcing of Raw Materials 2 Y SSp1 Construction Activity Pollution Prevention 2 MRc4 BPDO: Material Ingredients 2 1 SSc1 Site Assessment 1 2 MRc5 Construction and Demolition Waste Management 2 2 SSc2 Site Development: Habitat (Financial Support) 2 1 SSc3 Open Space [RP] Indoor Environmental Quality Possible Points 10 4 SSc4 Rainwater Management [RP] 3 Y?Y?N N 2 SSc5 Heat Island Reduction 2 Y IEQp1 Minimum IAQ Performance 1 SSc6 Light Pollution Reduction 1 Y IEQp2 Environmental Tobacco Smoke Control 1 SSc7 Tenant Improvement Guidelines 1 2 IEQc1 Enhanced Indoor Air Quality Strategies IEQc2 Low-Emitting Materials Water Efficiency Possible Points 11 1 IEQc3 Construction Indoor Air Quality Management Plan 1 Y?Y?N N 2 1 IEQc4 Daylight 3 Y WEp1 Outdoor Water Use Reduction 1 IEQc5 Quality Views 1 Y WEp2 Indoor Water Use Reduction Y WEp3 Building-Level Water Metering 4 2 Innovation Possible Points 6 2 WEc1 Outdoor Water Use Reduction 2 Y?Y?N N 4 2 WEc2 Indoor Water Use Reduction 6 1 INc1.1 Exemp. Performance LTc5, Access to Quality Transit 1 2 WEc3 Cooling Tower Water Use 2 1 INc1.2 Exemp. Performance SSc5, Heat Island Reduction 1 1 WEc4 Water Metering 1 1 INc1.3 TBD: Suggest User Education 1 Highlight Key Design Credit Construction Credit 1 INc1.4 LEED O+M Starter Kit Strategy 1 1 INc1.5 TBD: suggest Walkable Project Site 1 Credit # 1 INc2 LEED Accredited Professional 1 Credit # Pennsylvania Ave. NW WDG 4/5/2017 Doc. Complete Total Possible Points 110 Certified 40 to 49 points Silver 50 to 59 points Gold 60 to 79 points Platinum 80 to 110 points [RP] - Regional Priority credit (1 additional point available for up to 4 points) A-600 PRELIMINARY LEED SCORE CARD

12 Pennsylvania Avenue NW Sustainable Approaches Overview This project has been mandated to be environmentally responsible and to be certified using the United States Green Building Council (USGBC) Leadership in Energy and Environmental Design (LEED) criteria. The project Owner/Developer was already planning to incorporate sustainable design and construction elements in the project, some of which are rewarded by the LEED rating system. A brief summary of sustainable strategies being considered and implemented follows. LEED The U.S. Green Building Council (USGBC) established the LEED program as a tool to evaluate the energy efficiency and environmental impacts of building projects. The LEED building rating system uses seven categories in which projects can obtain credits to achieve certification (Sustainable Sites, Water Efficiency, Energy & Atmosphere, Materials & Resources, Indoor Environmental Quality and Innovation & Design Process, and Regional Priority). Four levels of certification are available. The credit threshold for each level of certification varies for different rating systems. To qualify for certification a project must meet certain prerequisite credits. The number of additional credits required is dependent on the level of certification that the project is seeking to attain. The project has been registered as a LEED v4 Core and Shell (CS) projects with USGBC. All documentation will be submitted via USGBC s website ( to be reviewed and approved by a third party for both the design and construction phases of the project. SDC, the LEED consultant, is maintaining a tracking tool and checklist to manage the responsibilities of team members, to record documentation progress, and to identify tasks required to complete documentation. The LEED checklist, or scorecard provided shows the breakdown of points being pursued. Sixty (60) points are required for the targeted Gold certification level. The current scorecard shows slightly less than 60 points in the yes column due to the project being in an early phase. The criteria for credits shown with additional points in the maybe-yes (?Y) and maybe-no columns (?N) of the scorecard will be analyzed further for feasibility, and some will be pursued in order to reach the LEED-CS Gold Certification level. Many of the targeted points are related to energy and water efficiency, which reflects a commitment to delivering a high-performance mixed-use project. Preliminary interdisciplinary analysis with the Owner and the Design Team has been conducted to identify the targeted credits and the strategies needed to fulfill credit criteria. Credits are identified as achievable based on design feasibility and potential environmental benefits. Those credits deemed achievable are scored as yes ; several additional credits that are being evaluated further for feasibility are scored as maybe-yes. While some credits have a greater first cost associated with them, the long term environmental and economic benefits justify including them in the LEED goals. The credits pursued are those that will help provide quality space at a greatly reduced environmental impact. Goals include the following: - Significantly reducing or eliminating storm water runoff / pollution through rainwater collection and through a vegetated roof. - Reducing potable water usage: o Irrigation will be limited and will be designed to use little or no potable water. o Water savings of 30-35% for interior plumbing will be realized through the use of water conserving fixtures such as low-flush toilets, and low flow faucets and showerheads. o Reuse of rainwater for cooling tower make-up is proposed. - Reducing energy consumption by designing a high-performance building envelope and adopting high efficiency HVAC systems - Improving productivity and occupant health by access to daylight and views - Meeting ASHRAE 55 standards to ensure thermal comfort and providing thermal controls to ensure accommodation of the individual preferences of its occupants. - Installing low-emitting paints, adhesives, sealants and flooring systems. Other Strategies In keeping with Boston Properties vision that the project addresses environmental issues beyond LEED, the Design Team is exploring several aspects of sustainable strategies. The goal is do more than obtain a LEED plaque; it is to create a building that stays green during operation and supports both inhabitants and neighbors. This started with selecting a site that meets Smart Growth initiatives. The project s location is in line with urban planning and transportation goals of concentrating growth in walkable, bike-friendly and transit-oriented areas. In keeping with the District s benchmarking requirements and Boston Properties goals, operational energy and water use will be reported. The company s website, includes an annual Sustainability Report in addition to the goals and key performance indicators of green building features. Operational Policies under consideration include Green Leasing as well as Health and Wellness Programs such as Green Housekeeping. PRELIMINARY LEED NARRATIVE 1432 K Street NW, 3 rd Floor PRELIMINARY LEED NARRATIVE A- 601